OECD Sahel and West Africa Club

OECD Sahel and West Africa Club The Sahel and West Africa Club (SWAC) is an international platform for policy dialogue and analysis.

The Sahel and West Africa Club (SWAC) is an international platform for policy dialogue and analysis devoted to regional issues in West Africa. Its mission is to enhance the effectiveness of regional policies and partner support.

A new article from The Economist highlights how Africa’s growing middle class is transforming the continent’s urban land...
08/07/2026

A new article from The Economist highlights how Africa’s growing middle class is transforming the continent’s urban landscape, with residential developments increasingly expanding beyond traditional city centres.

The article draws on data from Africapolis, the OECD/SWAC platform that maps and analyses urbanisation dynamics across Africa.
🔗 Read the article: https://lnkd.in/evHmSX4i
🌍 Explore Africapolis: https://africapolis.org/

Africapolis provides a harmonised view of urban growth across more than 11,000 urban agglomerations in 54 African countries. By combining historical demographic data (1950–2020) with projections to 2050, it offers one of the most comprehensive pictures of how African cities are evolving and where future population growth is likely to take place.

As urbanisation accelerates across the continent, reliable data remains essential for informing land-use planning, housing, infrastructure and service delivery policies. We are pleased to see contributing to the global conversation on Africa’s urban future.

These issues are explored further in our Africa’s Urbanisation Dynamics series.
📊 Read the reports: https://lnkd.in/eWVrbq4w
✉️ Subscribe to our newsletter: https://lnkd.in/e4Kfsaiy
Photo: Ricci Shryock

Where are the urban flood-risk hotspots in West Africa?New analysis overlaying   urban footprints with the 100-year retu...
24/11/2025

Where are the urban flood-risk hotspots in West Africa?

New analysis overlaying urban footprints with the 100-year return period flood hazard zone reveals how much built-up area is exposed in each city.

Cities are categorised by the extent of the urban area at risk:
🔹 Yellow: 5 km² exposed

Regional findings:
🔹 64 cities, primarily coastal, have more than 5 km² of urban area inside flood-prone zones.
🔹 191 cities fall within the 1-5 km² range.
🔹 541 cities have less than 1 km² exposed.

High-exposure cities are concentrated along the Atlantic coastline and the Senegal and Niger River corridors. This indicates that these are priority locations for investment in climate-resilient infrastructure and land-use planning.

Which adaptation strategies should be prioritised to safeguard these fast-growing urban centres?

Read more: https://lnkd.in/et5T5dg9

🌧️ Extreme rainfall in West Africa is accelerating, and the data show why it matters.Between 2019 and 2023, several coas...
21/11/2025

🌧️ Extreme rainfall in West Africa is accelerating, and the data show why it matters.

Between 2019 and 2023, several coastal zones recorded 60+ days of very heavy rainfall (>20 mm/day) per monsoon season.

Our new analysis maps the maximum number of heavy-rain days per season across the region. The patterns are clear:

🔹 Every country experiences highly concentrated rainfall during monsoon months.
🔹Guinea-Bissau, Sierra Leone, Liberia and Nigeria show the highest clusters of intense rain days.
🔹These extremes increasingly exceed infrastructure design thresholds, raising the likelihood of flooding, transport disruptions, and service interruptions.
🔹Rapid urbanisation in coastal cities is amplifying exposure.

For governments and planners, this trend is more than a climate signal, it’s an operational challenge. Identifying where and when rainfall intensity peaks can help prioritise investments in drainage, early-warning systems, land-use planning and coastal protection. How should cities translate this type of climate data into policy and infrastructure decisions? Which adaptation measures deserve priority in high-exposure coastal areas?

Read more here: https://lnkd.in/et5T5dg9

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